interdiffusion and reactions in thin films

... books in a variety of electronic formats Some content that appears in print may not be available in electronic books. Library of Congress Cataloging-in-Publication Data Separations and reactions in ... proton-donors and/or proton-acceptors within the molecule, and theability, during crystallization, to form host frameworks containing layers, chan-nels and various other types of cavities On the other hand, ... [48] In the absence of toluene, compound 28 forms a 1:2 crystalline complex with rac-cyanohydrin (30) When both 28 and rac-30 were dissolved in toluene, the crystalline product contained 28 and

Ngày tải lên: 10/07/2018, 11:27

... nano-material Fingre.1.3: Schematic representation of photo-induced hydrophilicity In the presence of UV light, some electrons and holes participating in redox reactions with oxygen molecules and water ... TiO2/SiO2 and TiO2/PEG thin films by Trang 2The thesis is completed at: Graduate University of Sciences and Technology, Vietnam Academy of Science and Technology Supervisors: 1) Dr Nguyen Trong Tinh ... thesis: The thesis consists of the introduction, 5 chapters and the conclusion The results are published in five journals including 03 international publications and 02 national publications Trang

Ngày tải lên: 09/01/2020, 15:45

... nano-material Fingre.1.3: Schematic representation of photo-induced hydrophilicity In the presence of UV light, some electrons and holes participating in redox reactions with oxygen molecules and water ... TiO2/SiO2 and TiO2/PEG thin films by Trang 2The thesis is completed at: Graduate University of Sciences and Technology, Vietnam Academy of Science and Technology Supervisors: 1) Dr Nguyen Trong Tinh ... thesis: The thesis consists of the introduction, 5 chapters and the conclusion The results are published in five journals including 03 international publications and 02 national publications Trang

Ngày tải lên: 15/01/2020, 08:31

... obtained at 450 ◦C Energy dispersive X-ray analysis was performed to study the chemical composition of the thin films Key words: Thin films, AACVD, molecular precursor, single crystal/ZnS thin films ... of thin films was carried out on soda glass substrates in the 350–450 ◦C temperature range under inert conditions The as-deposited thin films were characterized by powdered X-ray diffraction and ... prepa-ration of single source precursors (SSPs) for the deposition of thin films/nanoparticles of semiconductors.4−10 A number of methods are used to grow the thin films, including spray pyrolysis,11

Ngày tải lên: 12/01/2022, 23:30

... 59-74% sand, 20% kaolinite, and 1% CaCO3, and the peat moss content was A 5%, B 10%, C 15%, and D 20% 29 Figure 2.3 The accumulation of Hg in diffusive gradients in thin films (DGT) resin and earthworm ... accumulation in the soil, earthworm, and binding gel Indeed the water-holding capacity played a dual role in the Gumu Creek deposits: increasing the soil Hg concentration and decreasing Hg bioavailability ... gradient in thin films technique for mercury bioavailability prediction in soil Nguyen Huu Viet School of Earth Sciences and Environmental Engineering Gwangju Institute of Science and Technology

Ngày tải lên: 31/10/2022, 07:46

... kg⁻¹, highlighting significant environmental contamination Studies in industrial area soils in Spain have documented Hg levels averaging approximately 152 ± 47 μg kg⁻¹, indicating moderate pollution ... (Gonzalez-Fernandez et al., 2014) Additionally, in the mining region of Almadén, Spain, notably high mercury concentrations have been detected, underscoring the ongoing impact of historical mining activities ... mainly exists as inorganic mercuric salts such as HgCl₂, HgO, and HgS, along with minerals like cinnabar and metacinnabar The chemical form of Hg(II) depends on soil redox potential; in oxidizing

Ngày tải lên: 27/08/2023, 20:51

... conducted in soils from 3 industrial areas in Spain reported concentrations of Hg roughly 152 ± 47 μg kg −1 (Gonzalez- Fernandez et al 2014) In mining area in Almadén, Spain, high concentrations ... 2019, Yin et al 2016) Hg(II) can transform under the influence of soil redox potential and exist dominantly in Hg-S compounds in oxidizing conditions Under the reducing condition, biological and ... conducted to examine the bioaccumulation of Hg by individual earthworm species.DGT technique for Hg measurementThe diffusive gradients in thin films (DGT) is an in-situ sampling technique that

Ngày tải lên: 03/08/2024, 12:36

... of Engineering Physics, Ha Noi University of Science and Technology, Dai Co Viet road, Ha Noi, Viet Nam School of Materials Science and Engineering, China University of Geosciences, Beijing 100083, ... mode The streaky-line patterns were observed in the samples grown at high oxygen pressures, 2.2x10-6 and 8.2x10-6 Torr, as shown in the Fig 1(b) and (c), indicating that the films were grown under ... iron oxide films grown under oxygen pressures of 2.2x10-6 and 8.2x10-6 Torr, as shown in Fig (c) and (d), respectively The observed binding energies centered at about 711 eV and 725 eV in the XPS

Ngày tải lên: 02/09/2017, 08:42

... coated area remains coated during the slow drying process, and, as sketched in Fig.1(b), the final film dries into a plano-concave shape with maximal thickness at the rim, and a thinner central ... American Institute of Physics Trang 2Analysis of mobile ionic impurities in polyvinylalcohol thin films by thermal discharge current and dielectric impedance spectroscopy M Egginger1,2and R Schw ... to 170◦C with a 100μm thin NiCr-Ni thermocouple embedded in a ∼150 μm thin epoxy-film on a dummy-substrate. A sample was removed from the desiccator and installed instantly in the chamber The bottom

Ngày tải lên: 19/11/2022, 11:47

... observed The results indicated the incorporation of carbon within the silica network A combination of the decrease in Si-O-Si bond angle and an increase in the carbon incorporation within the silica ... changes in the coordination of silicon in amorphous silica The presence of different coordinations and silicon sites results in broadening of the Raman modes and a decrease in intensity In addition, ... heat-treated films, there is a shift toward lower binding energies and an asymmetric broad-ening of the peak This is in agreement with the FT-IR results and indicates the incorporation of carbon within

Ngày tải lên: 04/12/2022, 15:01

... NNO thin films. Using these conditions, we then proceeded to grow consecutively five nominally identical NNO thin films (labeled A, B, C, D, and E) From the RHEED and AFM analysis these films ... result in an enhanced metallicity and a decrease of TMIT,9as we observe experimentally To gain insight into the Ni valence, we analyze in more detail the Ni-2p3/2 main line (cf. Figure 4b) Following ... associated FIG 6 Band picture for the doping effect In a) the negative charge transfer picture that is modified by adding electrons in b) and allowing the enlargement of the Ni-3d bandwidth in c). Trang

Ngày tải lên: 04/12/2022, 16:10

... of electrochromic windows, known as 'smart windows,' is to control the flow of light and heat passing through building glazing and vehicle glass In the future, electrochromic windows will be widely ... confinement in photoluminescence, the quantum size effect on doping, including interactions with induced charges at the dielectric discontinuity, necessitates investigation.Quantum confinement significantly ... preliminary calculations of building energy for dopant points suggest that this reduction in \( \epsilon \) plays a minor role in the final results, as the larger increase is attributed to the induced

Ngày tải lên: 12/07/2023, 14:24

... is interested in arguing for the intersecting realms of visual culture, space and spectatorship by collating and comparing information from a range of sources In acknowledging current trends in ... solely as an Auteur, but as a key influence in 11 anticipating and challenging spectatorial reception and the circulation of meanings of seeing and understanding within popular culture This literature ... of the spectatorial mindscape, and the spectatorial mindscape continually ascertains meaning from the fragmented depictions within the filmscape, the filmscape and the mindscape are thus mirrored...

Ngày tải lên: 02/10/2015, 17:13

... windows' is to control the flow of light and heat passing the building glazing and the glazing of vehicles In future, the electrochromic windows will be massively applied for energy saving in ... doping, including interactions with induced charges at the dielectric discontinuity, requires investigation Fundamentally, quantum confinement pushes up the allowed energies resulting in an increase ... water, the binding energy is dramatically decreased compared to vacuum as the doping case considered in the last section Recombination and binding energies of the excitons confined in silicon...

Ngày tải lên: 25/03/2015, 11:58

... Channeling random and channeling spectra for 6% Ta incorporated TiO2 on LAO substrate; (b) (Left axis) Minimum channeling yield for Ti and Ta and (Right axis) Ta substitutionality in Ti1-xTaxO2 thin ... transport, optical and magnetic properties appear to be quite distinct 1.2 Defects and Dopings in Semiconductors 1.2.1 Intrinsic and Extrinsic Defects in Semiconductors Defining classically, a ... of Ta incorporation in Ti1-xTaxO2 thin films with 100% carrier activation (red solid circles) Variation of inactivated carrier density as a function of Ta incorporation in Ti1-xTaxO2 thin films...

Ngày tải lên: 09/09/2015, 18:49

... observed in a variety of systems containing FM/AFM interfaces, such as inhomogeneous materials, 2, 39 particles 1, 2, and FM thin films on AFM single crystals 40, 41 and thin films. 39, 42, 43 In addition ... (0.6)/FeMn(11.6)/Ta(2.1 nm) PEB thin films and single layered Co 80 Fe 20 (20 nm) thin films on P Ar,CoFe , and (b) XRD patterns of 20 nm Co 80 Fe 20 single layered thin films deposited at different ... spins in FM layer to original position as shown in Fig 2.2(b), because the ferromagnetic coupling in the FM-AFM interface helps the spins of FM layer to rotate back as shown in Fig 2.2 (a-iv) and...

Ngày tải lên: 10/09/2015, 15:53

... stresses in thin films 64 2.2.1 The origins of stresses in thin films 64 v 2.2.1.1 The mismatch of lattice parameters of the film and substrate ... Chua Soo Jin from the Institute of Materials Research and Engineering (IMRE) for my access to the sputter equipment, and Dr Yu Hongbin from the NUS Department of Mechanical Engineering for the ... capping layer, by measuring the tip deflections of micro-cantilevers The stress is found to increase with decreasing film thickness A thin dielectric capping layer leads to a further increase in...

Ngày tải lên: 11/09/2015, 09:16

... thin films was discussed in detail In Chapter 5, stress-induced anisotropy has CHAPTER INTRODUCTION been studied in pure and SiO2 doped cobalt ferrite thin films The properties of these two films ... anisotropy In part I, magnetocrystalline anisotropy was studied in Al-doped barium ferrite, both in powders and in thin films Other kinds of anisotorpies, i.e shape anisotropy and stress-induced ... reduced and a plane anisotropy was finally exhibited in thick films (∼500 nm) v SUMMARY Both SiO2 doped and pure cobalt ferrite thin films were synthesized using a sputtering method in order...

Ngày tải lên: 10/11/2015, 11:33

... of states in the minority spin band compared to the majority spin band at 22 Chapter Theory and Review the Fermi level However, the group explained convincingly that spin-flip scattering could ... ferromagnetic layers sandwiching a thin insulating layer The common ferromagnetic materials used include Ni80Fe20 and Co In this project, the metal Ta was examined to determine its suitability ... shown in Figure 2.3.1a, resulting in majority of electrons in adjacent layers having opposite spins A spin ‘up’ majority electron in one layer will encounter strong scattering both at the interfaces...

Ngày tải lên: 10/11/2015, 11:35

... area, and stoichiometric flow ratio The inlet velocities of air and fuel are calculated according to [22]: u in ,c = ζ c I RTin ,c AMEA xO2 ,in Pc Ach 4F (39) u in ,a = ζ a I RTin ,a AMEA x H ,in ... phase change inside the GDL 2.2.3 Catalyst layers The catalyst layer is treated as a thin interface, where sink and source terms for the reactants are implemented Due to the infinitesimal thickness, ... cm2 serpentine flow-fields with single channel, double channel, cyclic-single channel, and symmetric-single channel patterns to investigate the effect of flow-field design High and low inlet humidity...

Ngày tải lên: 05/09/2013, 14:58